Safety-envelop.



M. A. EVANS.

SAFETY ENVELOP.

APPLICATION FILED JUNE 6, 1909.

949,65 1 Patented Feb. 15, 1910.

q/vi/bmcooco MARY ALICE EVANS, OF PUPLAR. PLAINS, KENTUCKY.

SAFETY-ENVELOP.

Application filed June 5, 1999.

Specification of Letters Eatent.

Patented Feb. 15, 1910.

Serial No. 500,323.

To all whom it may concern.-

Be it known that I, MARY Anion Evan's, a citizen of the United States,residing at Poplar Plains, in the county of Fleming and State ofKentucky, have invented new and useful improvements in Safetylflnvelops,of which the following is a specification.

This invention relates to safety envelops, the main object of theinvention being to provide a simple and inexpensive construction ofenvelop of this character which when sealed cannot be opened forinspection or abstraction of its contents without giving visual evidenceof the fact that it has been tampered with.

A further object of the invention is to provide an envelop which may beused as a letter sheet envelop, or as an envelop having a safetyreceptacle for a letter or other written message and a space upon whichan additional message may be written or matter of any kind printed.

lVith these and other objects in view, the invention consists of thefeatures of construction, combination and arrangement of partshereinafter fully described and claimed reference being had to theaccompanying drawings, in which;

Figure 1 is a plan view of the blank from which the envelop is formed.Fig. 2 is a rear elevation of the envelop as it appears prior to theclosure of the top sealing flap. Fig. 3 is a view of the sealed envelop.Fig. 4 is a section thereof, taken on an enlarged scale, on the line 4-4of Fig. 3.

Referring to the drawings, 1 designates the body or front of theenvelop, which is provided with tapering end flaps 2 and 3 a bottom orrear flap 4 and a top sealing flap 5. Each of the flaps 2 and 3 isformed .with gummed edges 6, and the end of the flap 3 has a terminaltongue 7 formed with a gummed inner face 8. The flap is provided withgummed edges 9 and is provided with a central tongue 10 gummed on itsinner face, as shown.

The flap 2 is formed with a vertical transverse slit 11 and outwardlybeyond the same with ashorter horizontal slit 12, while the flap 3 has ahorizontal slit 13, which registers with the slit 12 when the said flaps2 and 3 are folded upon one another.

The bottom flap 4 is formed with auxiliary end flaps 14 and 15 and withan auxiliary sealing flap 16, the flap 14 having the inner face of itsouter end gummed, as at 17 while the edges of the flap 16 are gummed ontheir inner face, as at 18.

In the use of my improved envelop as a letter sheet envelop, thecommunication may be written upon the inner faces of the eX- tendedflaps 1 and 4, after which the envelop may be folded and sealed byfolding the flap 15 over upon the flap 4, folding the flap 14 over uponthe outer side of the flap 15 and securing it thereto by its gummed face17, folding the flap 16 over upon said flaps 14 and 15 and securing itby its gummed faces 18 thereto, and folding the bottom flap with itsfolded auxiliary flap over upon the rear face of the flap 1. The envelopis then completed and secured by folding the flap 3 over upon the bottomflap and the flap 2 over upon the flap 3, passing the tongue 7 throughthe slit 11 and gumming it to the outer face of the flap 2, and finallyturning down the flap 5 and gumming it to the folded flaps 2 and 3 andpassing its tongue 10 through the slits 11 and 13 and gumming it to theouter face of the flap 4. lVhen the envelop is then folded and closed itwill be apparent that it cannot be opened for inspection of the mattercontained on the flaps 1 and 4 by the process of steaming or in anyother way without giving visual evidence of the fact that it has beentampered with.

If desired, a letter or communication written upon a separate sheet ofpaper may be inclosed within the receptacle formed by the flaps 4, 14,15 and 16, which are then folded over upon the body 1 and the envelopclosed in the manner previously described. This letter or communicationwill thus be securely contained and protected from abstraction withoutrendering it apparent that the envelop has been tampered with. In suchcontingency the inner face of the flap 1 may or may not be employed as aletter sheet upon which auxiliary or additional matter may be written.

From the foregoing description, taken in connection with the drawings,it will be seen that my invention provides a comparatively simple andinexpensive construction of envelop which is admirably adapted for thepurposes mentioned and affords increased conveniences in use, as well asprotection against surreptitious opening without detection.

I claim An envelop comprising a body having a bottom flap, end flaps anda top sealing flap, the latter being provided with gummed sealing flapupon said bottom liap having 10 edges and a gummed tongue, one of saidend gummed edges for attachment to sald end flaps being PIOVldECl with alongltudmal re-v flaps.

cess and a gummed terminal and the other In testimony whereof I affix mysignature end flap with a coactlng longitudinal recess I in presence oftwo Witnesses. and a transverse recess, the edges of said i MARY ALICEEVANS.

end flaps being gummed for attachment to Witnesses: the bottom flap, endflaps upon the bottom l Trros. B. HOWE, flap, one havlng a gummedtermlnal, and a i A. P. PL'UMMER.

